Tech Tip: Smartphones use lithium-ion batteries. These batteries operate on charging cycles, meaning each time you charge the battery from 0% to 100%, it completes one cycle.

A popular belief among smartphone users these days is that you should never charge your phone to 100%, but rather, keep it at 80%. Many believe this is the best way to extend battery life. But is this true, or is it just a myth based on incomplete information?

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Most smartphones today use lithium-ion batteries. These batteries operate on charging cycles, meaning each time you charge the battery from 0% to 100%, it completes one cycle. Over time, these cycles gradually reduce the battery's capacity. This is why some people recommend avoiding fully charging the battery to prolong its life.

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The concept of keeping the battery charged up to 80% is essentially about reducing battery stress. When the battery goes above 90%, it's under a bit more stress, which can impact its health in the long run. This is why some experts recommend keeping the battery between 20% and 80%. However, this doesn't mean that charging up to 100% is always wrong.

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If you're out all day, traveling a lot, or using your phone heavily, charging it to 100% may be more beneficial. This will reduce the need for frequent charging and provide better battery life.

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Today's modern smartphones feature smart charging technology that prevents the battery from overcharging even after it's fully charged. This means you can fully charge your phone without worrying.

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The biggest mistake isn't charging to 100%, but leaving your phone at 100% or 0% for extended periods of time. For example, leaving it on charge overnight or repeatedly draining the battery completely. Furthermore, overheating is also harmful to the battery, so avoiding heat during charging is crucial.